Question

A reaction of 12.640 g of copper oxide with 0.316 g hydrogen

produces 2.844 g of water and Xg of copper X = _g

Answer 1

x = 10.2g

Step-by-step explanation:

CuO + H2 --> H2O + Cu

12.640 g CuO/ 79.55g =0.16 mol

0.16 mol CuO x 1 mol of Cu = 0.16 mol Cu

0.16 mol Cu x 63.546 g = 10.2g of Cu